in albany, don ford, cbs 5. >>> talk about rising prices. people are paying tens of thousands of dollars for walnuts in china. but not to eat them. people there are investing in them like crazy. the bigger the rarer the more expensive and if you can find a matching pair, you have really scored. the chinese also covet carved peach and olive pits. farmers in china have reportedly overplanted to meet demand and walnut prices are expected to crack soon. >> whew. >> i was worried about that. >> walnuts. who knew. >>> 4:50. when we come back, instead of long-lost let -- a set of long- lost letters brings an unlikely group of women back together. >>> what do americans think of president obama's cabinet picks so far? >> a tornado that tore through town. why witnesses say -- and what it felt like. ,,,,,,,,,,,, [ crickets chirping ] [ traffic passing ] ♪ [ music box: lullaby ] [ man on tv, indistinct ] ♪ [ lullaby continues ] [ baby coos ] [ man announcing ] millions are still exposed to the dangers... of secondhand smoke... and some of them can't